Door lock



FIG. 1 is a front elevational view of a door lock showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof, the bottom plan view being a mirrorimage;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is an enlarged vertical cross-sectional view thereof, taken alongline A--A of FIG. 1;

FIG. 7 is a top, front, and left side perspective view thereof;

FIG. 8 is an enlarged horizontal cross-sectional view thereof, takenalong line B--B of FIG. 7;

FIG. 9 is an exploded top, front, and left side perspective viewthereof; and,

FIG. 10 is a reduced top, front, and left side perspective view thereof,the broken line disclosure of a container being for illustrativepurposes only and forming no part of the claimed design.

The ornamental design for a door lock, as shown and described.